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Close Approach of (66146) 1998 TU3
#1
CNEOS predicts that the kilometer-sized, Aten class NEO, (66146) 1998 TU3 will make a close approach on 2024-Nov-05 19:47±<00:01 UT at a distance of 0.08884 AU moving with V Relative =11.53 km/sec, H=14.4 magnitude, diameter 2.864±1.165 km and 'Rarity'=3. As of 2024 Aug 25, there is a 15239 day observation arc, the Condition Code=0 and the Earth MOID=0.0734514 AU. The solution date was 2024-Aug-25 05:48:53 PDT. This NEO was discovered at Socorro on 1998-10-13 by LINEAR. Its not on MPC's list of PHAs due to the large Earth MOID. This is another 'Rarity'=3 event and SkyTools predicts that this MP is already ~15.3 magnitude in Taurus at 0.48 AU distance.

Using MPC's elements for 2024 Aug 28 0000 UT, ST4.1.11.10 Visual predicts that this NEO will reach a peak brightness of 11.6 from the morning of 2024 Oct 27 in Eridanus at 0.11 AU distant to the evening of 2024 Nov 1 in Horologium at 0.09 AU distance. The close approach is predicted to occur (to the nearest hour) on 2024 Nov 5 1500 EST when the NEO will have faded to 12 magnitude traveling through Hydrus at 10.7"/minute in daylight and below the horizon in Columbus, Ohio.  It will move too far south to be visible from Columbus, Ohio  on the morning of 2024 Oct 29, unfortunately. This close approach will be best for southern hemisphere observers, weather permitting.

Here's the Object Info dialog for this NEO:     

This object will be visible in medium sized scopes for quite a while from both hemispheres, so there should be many opportunities to observe it.

Good Hunting,

Phil S.
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#2
This bright, large NEO is now too far south to be observed from 40°N. Its 11.6 magnitude in Horologium.

Phil S.
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